IS 4651-1: Code of practice for planning and design of ports and harbours, Part 1: Site investigation

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"The Right to Information, The Right to Live''

IS 4651-1 (1974) : Code of practice for planning and design
of ports and harbours^ Part 1: Site investigation [CED 47:
Ports and Harbours]

Jawaharlal Nehru
'Step Out From the Old to the New"

aj^&vi iJii^s:y%K^ isb^^ni^seg

:<>5&i| mT'5K^5?::5:^>^i»l

K^^^iXSVCd^

Satyanarayan Gangaram Pitroda
Invent a New India Using Knowledge

Bhartrhari — Nitisatakam
''Knowledge is such a treasure which cannot be stolen"

^'^^^r

k

BLANK PAGE

^*-^^^

PROTECTED BY COPYRIGHT

15^4651 (Part I )^ 1974

(Reaffirmed 2012)

Indian Standard

COD£ OF PRACTICE FOR

PLANNING AND DtSIGN OF

PORJS AND HARBOURS

PART I SITE tMVESTlGATTON

( Fir Si Revision)

Sccmd Repriiii MAY JysS

I > D 1 A N S T A N D A K D S i N S T I T LI T I O N

MAhiAi: HHAVAW, P HAHAtiUK SHAH lAfAH MARti

Q^ Novunbvr i974

IS: 4651 (Parti). 1974

Indian Standard

CODE OF PRACTICE FOR

PLANNING AND DESIGN OF

PORTS AND HARBOURS

PART I SITE INVESTIGATION

( First Revision )

Ports and Harbours Sectional Committee, BDC 66

Chairman Representing

BttjG O. P. Narula Ministry of Shipping & Transport, New Delhi

Members

Shbi M. Balasubbamaniam Mormugao Port Trust, Mormugao

Shbi U. R. BAI.ASUBBAMANIAM Madras Port Trust, Madras

Shbi V. V. Seshadbi ( Alternate )
Shbi N. P. Bhakta Pre-investment Survey of Fishing Harbour,

Bangalore
Shbi H. V. Ramaswamy ( Alternate )
Db S. K. Bhattacharjee Hydraulic Study Department, Ports Commissioners,

Calcutta
Db S. K. Nag ( Alternate)
Shri R. K. Budhbhatti Public Works Department, Government of

Gujarat
Shbi B, P. Kukadia ( Alternate )
Shbi I. G. Chacko Calcutta Port Commissioners, Calcutta

Shbi R. G. Ghosh ( Alternate )
Shbi A. H. Divanji Rodio Foundation Engineering; and Hazarat &

Co, Bombay
Shbi A. N. Jangle ( Alternate )
Shri K. K. Fbamji Consulting Engineering Services India Pvt Ltd,

New Delhi
Shbi S. Ghosh ( Alternate )
Shri S. R. Gaitondb Bombay Port Trust, Bombay

Shri A. Ghoshal Braithwaite Burn & Jessop Construction Ltd,

Calcutta

( Continued on page 2 )

© Copyright 1974
INDIAN STANDARDS INSTITUTION

This publication is protected under the Indian Copyright Act ( XIV of 1957 ) and
reproduction in whole or in part by any means except with written permission of the
publisher shall be deemed to be an infringement of copyright under the said Act.

( Coniiniudfrom page 1 )

Mtmbers Representing

Shbi C. V, Ck>LB Central Water & Power Commission ( CWPRS),

New Delhi
Dr Z. S. Tabapobe ( Alternate )
Rsab*>Adm V. M. Katdabe Indian Navy ( Ministry of Defence )

l/r-Coii P. S. Sethke {Alternate )
Shri B. L. MrrAii Calcutta Port Commissioners ( Marine Depart-

ment ) , Calcutta
CattP. N. Batba ( Alternate )
Shbi T. K. D. Munsi Engineers India Limited, New Delhi

Skex H. S. Cheema ( Alternate )
Brio F, H. Nabubkar Engineer-in-Chief's Branch, Army Headquarters,

New Delhi
Lt*Coi* Ombib Singh ( Alternate ) •
Smiii Habuvkm p. Oza School of Planning, AhmedaBad

Shiii B* K. Panthaky Hindustan Construction Co Ltd, Bombay

Shri G. S. Ramiah Visakhapatnam Port Trust, Visakhapatnam

SsRX H. R. Laxminarayan {Alternate )
Shri S* R. Roessler Howe ( India ) Pvt Ltd, New Delhi

Shri H. Nandi ( Alternate )
Shri D. Ajitha Simha, Director General, ISI {Ex'officio Member)

Director ( Civ Engg )

Secretary

Shbi G. Rahan
Deputy Director ( Civ Engg ), ISI

IS :4651 (Part I)« 1174

Indian Standard

CO©E OF PRACTICE FOR

PLANNING AND DESIGN OF

PORTS AND HARBOURS

PART I SITE INVESTIGATION

( First Revision )

0- FORE \V O R D

0,1 This Indian Standard (Part I) (First Revision) w^ adopted by the
Indian Standards Institution on 15 March 1974, after the draft finalized by
the Ports and Harbours Sectional Committee had been approved by the Civil
Engineering Division CounciL

0.2 A great need has been felt for f<?rmulating standard recommendations
relating to various aspects of waterfrpnt structures. This standard is one of
a series of Indian Standards proposed to be formulated on this subject,
IS: 4651 (Part III)-1974* relates to/ioadings. This Part deals with site
investigation. This standard was published in 1967 mainly to cover provisions
regarding soil investigations and other allied data useful for the design of
port and harbour structures. In the first revision the subject has been
covered comprehensively to include all aspects related to collection of data
needed for the planning and design of such structures.

0,3 For the purpose of deciding whether a particular requirement of this
standard is complied v/ith, the final value, obsen/ed or calculated, expressing
the result of a test or analysis, shall be rounded off in accordance with
IS : 2 - 1960f . The number of significant places retained in the rounded off
value should be the same as that of the specified value in this standard.

1. SCOPE

1.1 This standard (Part I) deals with site investigation and collection of
data necessary for the planning, design and construction of marine structures
of ports and harbours after selection of a suitable site for the port.

♦Code of practice for planning and design of ports and harbours: Part III Loading
(first revision),

tRules for rounding off numerical values ( revised).

IS:4651(PartI)-1974

1.2 The information required is grouped under the following headings:

a) Survey (see 3 )^

h) Meteorological data (see 4)^

c) Oceanographic data {see 5),

d) Geological data {see 6),

e) Soil investigation (see 7),

f) Seismic data ( Je^ 8 ), and

g) Local resources (see 9),

2. GENERAL

2.1 A brief description of the site including its latitude, longitude, geogra-
phical location, accessibility, etc, should be given. Historical background of
the area, purpose of the project, type of hinterland and communications may
also be briefly described,

2.2 Available Information — Wherever possible, advantage should be
taken of existing local data on tides, storms, wave heights, littoral drifts,
mud banks, etc, and records of previous investigations in the vicinity and
information compiled. The behavidur of existing structures which may
be of similar nature to the ones proposed, and the influence of the soil and
water on the materials of construction should be studied and recorded.
At such places, site exploration, soil investigation and the examination of the
materials of construction may be limited to confirm the site data that may
be expected in the neighbourhood of proposed work.

3. SURVEY

3.1 Topographical survey of adequate area covered by the project is the first
reqtiirement and should be obtained at the earliest. Survey maps of
scale 1 : 50 000 and contour interval of 20 m are required for general
planning , The recommended scales for survey maps for detailed planning
are 1 : 5 000, 1 : 2 500 and 1 : 1 250 with contour interval of one metre. In no
case shall the survey maps for detailed planning be of scale less than 1 : 5000
with contour interval of one metre, depending however on topography of the
area,

3.2 Hydrographic survey charts for the coastal region extending to continental
shelf ( up to the line at which the depth of water is 200 m ) and of scale
I : 50 000 or 1 : 25000 (whichever is available) are required for general
^^lanning. Hydrographic charts required for detailed planning shall be drawn
jto a scale as large as possible but in no case shall be less than 1 : 5 000.
Recommended scales are 1 : 2 500 and 1 : 1 250,

ISs4651(PartI)-1974

4. METEOROLOGICAL DATA

4.1 Meteorological data to be collected should cover the folwpwing:

a) Winds,

b) Cyclones,

c) Rainfall,

d) Relative humidity,

e) Temperature, and

f) Barometric pressures.

4.2 Winds — For preliminary studies, information may be obtained from
the available meteorological records of the area. Recording of velocity and
direction of wind at the proposed site shall be obtained by installing conti-
nuous and self-recording anemometers. The data shall be collected for at least
a period of one year and shall also be correlated with the data available at
places nearest to the site. From the data so collected wind roses should be
prepared for each month in the form given in Fig, 1 and presented as shown
in Fig. 2.

4.3 Cyclones — Information should be compiled regarding track of cyclones.
The velocity of maximum winds, radius of maximum wind velocity, duration,
pressure drop at the cyclone centre anc^ speed of movement of cyclone centre
is required*. From this a design cyclone is adopted and waves that could
he incident at a place computed.

4.4 Rainfall — Data on rainfall as available should be collected from India
Meteorological Department for a minimum period of 3 years as follows:

a) Annual average rainfall,

b) Months in" which the maximum rainfall occurs,

c) Maximum intensity of rainfall and duration, and

d) Average number of wet days in a year.

4.5 Relative Humidity — Data on the maximum, mean and minimum
relative humidity for every month shall be obtained for a minimum period of
five years.

fi>

4.6 Temperature — l he normal ambient air temperatures with emphasis on
daily and seasonal variation may be noted.

4.7 Barometric Pressures — Data on monthly average barometric pres-
sures should be collected for the nearest site from the India Meteorological
Department.

♦Information given in * Handbook of cyclonic storms *, * Tracks of storms and depres-
sions in the Bay of Benga) and Arabian Sea — 1964, and Synoptic charts *, issued by
the India Meteorological Department.

18:465]. (Part I). 1974

5. OCEANOGRAPHIC DATA

5,t Oceanographic data to be collected should cover the foBowit^:

a) Tides,

b) Waves ( wind waves and swells ),

c) Storm surges,

d) Currents,

e) Salinity,

f ) Sea water temperature,

g) Suspended load, and
h) Sea bed.

5.2 Tides

5.2.1 Record of the tidal information, over as long a period ^s possible
from Port Authorities or Geodetic and Research Branch, Survey of India or
Hydrogmphic Department of the Indian Navy, including any local informa-
tion specific to the site of the works should be obtained. Based on this the
data as given in Fig. 3 should be compiled and presented.

Note 1 — Data over a full metonic cycle of 19 years will be useful.
Note 2 — Information on tidal bores, if any, in the area should also be collected
and included in the above data.

5.2.2 For most of the ports, the information on tides is available* and
may be adopted. For a new place, tide tables could be predicted and
furnished by the Survey of India on request. To compile information as
indicated in 5.2.1, at least two years observed records should be studied.

5.2.3 For important structures, tide levels expected at a particular place
may be required. For this purpose tides for at least 3 months shall be observed
and correlation established between the observed tides and the predicted
tides for the harbour in general.

5.3 Waves

5.3.1 For planning and preliminaiy design purposes, wave data collected
by ships plying in the area can be obtained from the India Meteorological
Department.

5.3.2 Wave heights can also be computed by hind casting studies using
the storm data and synoptic charts from the India Meteorological Depart-
ment,

5.3.3 For important projects, wave recorders may be installed and infor-
mation collected on wave height and period for at least 2 years. Separate
wave recorders should be installed for long period and short period waves.

•From the Indian Tide Tables published yearly by the Survey of India, Dehra Dun.

-5 mm

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208

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^ 5678^ND
ABOVE

SYMBOL FOR BEAUFORT
NUMBER SCALE

10 _5

IHHHHH

10 PERCENT 20

BEAUFORT SCALE OF WIND FORCE

SCALE

T

Beaufort
Number

(1)

Descbiption

Velocity

In km/h

In Knots

(2)

(3)

(4)

1

2

3

4

5

6

7

8

9

10

11

12

Calm
Light air
Light breeze
Gentle breeze
Moderate breeze
Fresh breeze
Strong breeze
Moderate gale
Fresh gale
Strong gale
Whole gale
Storm
Hurricane

Less than 1"9
1-9 to 6
7 „ 11

12 „19

20 „29

30 „39

40 „50

51 „61

62 „74

75 „87

88 „ 102
103 „ 117
118 and above

Less than 1

1 to 3

4,, 6

7„ 10
11 » 16
17 „ 21
22 „ 27
28 „ 33
34 „ 40
41 „ 47
48 „ 55
56 „ 63
64 and above

en

I

Fig. 1 Typical Rose Diagram for Wind Forge

00

SPACE FOR
BEAUFORT SCALE
OF WIND FORCE

ROSE 01

F(

JANUARY TC

A6RAMS

)R

1 DECEMBER

C==IZZIZD

SYMBOL FOR

BEAUFORT NUMBER

SCALE

PERCENT

HHH 1 t 1

SCALE

SPACE FOR
NOTES

ftOSE DfAGRAM

FOR WIND.

FORCE

w*

r

s

Note 1 —The centre figure in each rose diagram should indicate the number of observations at K

of the wind force during the years 19 to 19 ( inclusive ) except where otherwise noted.

Note 2 — The direction of wind is towards the centre of the rose diagram.

Note 3 — Size of sheet for rose diagram for wind force is Al ( 594 x 841 ),

Fig. 2 Presentation of Rose Diagrams for Wind Force

IS:4<>5](PwtI).1974}

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2

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Fio. 3 Form for Presenting Tidal Information

5.3.4 Wave direction may be obtained by visual obf-'^rvation/aerial
photographs and with pairs of wave recorders,

5.3.5 From the data collected as above, design wave parameters should be
worked out after drawing refraction/diffraction diagrams for the type of
structures.

5.3.6 Rose diagrams of wave heights and periods may be prepared in the
form given in Fig. 4 and presented as shown in Fig. 5.

5.3.7 Long Period Waves- — For the measurement of long period waves,
separate long period wave recorders should be installed and at least one
year's record obtained. Where such time is not available, wave records during
months when cyclones may occur in the fetch area may be taken. For
accurate assessment of incidence of long period waves separate wave recorders
^re required; however, a rough assessment can be made from wind wave/
swell recorders or even from tide gauges which plot curves on a graph sheet.
From such records the periodic time range of Ipng period waves could be
assessed and recorded.

5.4 Storm Surges ~ Storm surges may be inferred from tidal gauges, if the
gauges had functioned through the period of storm. In addition some special
instruments can be installed for recording storm surges. They can also be
calculj^ted from synoptic charts.

s

LEGENDS

TYPICAL ROSE DIAGRAM
FOR WAVE HEIGHT

TYPICAL ROSE DIAGRAM
FOR WAVE PERIOD

Fig. 4 Typical Wave Rose

4-0 AND
ABOVE

t

I

5 3

H H H

10 PERCENT

SCALE OF FREQUENCY

KEY PLAN SHOWING
THE PLACE OF
OBSERVATION

ROSE DIAGRAMS

FOR

JANUARY TO DECEMBER

LEGEND

WAVE HEIGHT

IN METRES

- —

PERCENT

SCALE OF
FREQUENCY

SPACE FOR
NOTES

ROSE DIAGRAM

FOR WAVE

HEIGHTS

Note 1 — The centre figure in each rose diagram should indicate the number of observations of height of
waves observed during the years 19 to 19 (both inclusive ) except where otherwise noted.

Note 2 — Direction of the waves is towards the centre of rose diagram.

Note 3 — Size of sheet for rose diagram for wave height is Al (594x 841),

5A Kose Diagrams for Wave Heights

83

r

Fig. 5 Typical Presentation of Rose Diagram for
Wave Heights and Wave Periods — Contd

I
5

KEY PLAN

SHOWING THE

PLACE OF

j

OBSERVATION

LEGEND

WAVE PERIOD
IN SECONDS

ROSE DIAGRAMS

FOR

JANiJARV TO DECEMBER

1

E

PERCENT

SCALE OF

FREQUENCY

SPACE FOR

NOTES

ROSE DIAGRAM

FOR

WAVE PERIOD

^

I

3

Note 1 — The centre figure in each rose diagram should indicate the number of observations of wave
periods observed during the years 19 to 19 (both inclusive) except where otherwise noted.

Note 2 — Direction of wave is towards the centre of the rose diagram.

Note 3 — Size of sheet for rose diagram for wave period is Al ( 594 x 841 ),

5B Rose Diagrams for Wave Period

Fig. 5 Typical Presentation of Rose Diagram for
Wave Heights and Wave Periods

IS: 4651 (Part I). 1974

5.5 durrents

5.5.1 The direction, strength and duration of current during complete
tidal cycles at maximum spring and neap tide over a year should be recorded.
In riverine ports where th<ere is fresh water discharge, current pattern at
highest expected flood should be assessed and jrecorded. Current pattern at
the specific location of stru*?tures, should also be assessed for a period of at
least one year for purposes of afignment of berth, dock entrances, moorings,
etc.

5.5.2 Current readings should be taken at a minimum of three points
preferably at depths of 0* 1 d, 0*5 d and 0*9 d where d is the depth of water,
and recorded.

5.6 Sea Bed — Classification of sea bed material in the vicinity of structures
and approaches and up to an area in the sea where depth of water is 6 m
more than the maximum depth for which the harbour is being designed,
should be ascertained and recorded. Sea bed slope which is also a design
parameter may be ascertained from hydrographic survey charts.

5.7 Susfiended Load, Salinity and Temperature

5.7.1 These observations shall be carried out both during the dry and wet
seasons at diifcrent locations in the harbour and channels over the full tidal
cycle during neap and spring tides. The suspended load and salinity shall be
measured at depths of O'l d, 0'5 d and 0*9 d below the water level ( where d
is the depth of water ) at every hours during the tide cycle. Salinity and
suspended load should be assessed from the water samples collected at these
depths. Salinity may also be measured at the site by using direct meters
which are available for this purpose. Sea water temperature shall also be
measured during these observations.

5.7.2 The quantum of littoral drifts may be estimated from observations
at nearby harbour sites over a period of at least one year. The direction of
drifts at the site may be ascertained from radio flourescent tracer studies and
other observations of the coast line in the vicinity of the structure, such as
dredging records, shore line changes, accretion errosion, wave data and the
orientation of river mouths. These studies may be conducted up to a location
where the depth of water is 12 m more than the design depth.

6. GEOLOGICAL DATA

6.1 Any detailed published information on the geological condition of the
area of the project, if available, should be carefully studied.

6.2 Geophysical Survey — The geophysical survey method of locating base
rock aims at giving a continuous record of strata. Geophysical sUrvey by
seismic refraction method may also be resorted to find out more reliable
information about the strata.

13

IS: 4651 (Parti). 1974

6,2.1 Siratification Survey by High Resolution Sdsmic Profiling ( Known
Commonly as Sparker Survey Y — This may be suitably used to determine the
thickness of the various sediment layers and disposition of underlying bedrock.
It may also be used to map the top of the first compacted layer and to check
the water depths.

6.2«1*1 A first interpretation can be made on the spot from the
onboard cross sections. Consequently, the survey programme can be modified,
while operating. Finally, a geophysical interpretation is made by preparing a
location map and a cross-section showing the stratification of various layers
and pointing out the main geological features. During or after the survey it
is common practice to select some locations for shallow and deep corings. A
correlation is obtained between the findings of the seismic survey and the
actual soils encountered during coring.

63 Compilation of Geological Data — The following data about the
geology of the area should be compiled:

a) Type of bedrock including information on its origin and method
of formation;

b) Any faults, fissures, folds and other unconformities in the area of
the project; and

c) Crushing strength and other properties of the rock in the project
area and its suitability for use in marine works.

7. SOIL INVESTIGATION

7.1 Earlier Uses of the Site — In a site which has been partii^lly developed
enquiries should be made regarding the past structures layout of pipes and
obstructions likely to be met in the area for new works. Enquiries should also
be made regarding old creeklets, excavated pits, etc, which might have
either silted up or reclaimed. This information will be particularly useful in

-deciding the number and location of trial pits and borings; and assessing in
general, the likely soil strata that may be met with.

7.2 Subsurface Exploration

7.2.1 It is not practicable to standardize the disposition and spacing of
borings required for subsurface investigation as these depend upon the type
of structure and the nature of the site. Broadly speaking the number of bore
holes should be suflkient to give a picture of the probabJc variation in the
subsurface strata over tlie site and their depth should be such as to include
all strata likely to aifect the stability of the structure. Any soft strata encoun-
tered below foundation level should receive special study.

7.2.2 A few subsurface soundings like the standard penetration test and
the cone penetration test may be conducted. The cone penetration test should

14

lS:4651(PartI)-1974

be conducted in conjunction with at least one bore hole with sampling for
correlation of soil type with the penetration resistance obtained from
soundings.

7.2.3 The subsoil investigation should be carried. out generally according
to IS: 1892-1962*.

7.2.4 Initially the main borings may be along the top edge of the shore.
These borings may be spaced 50 m apart and taken to a depth of 3 m into
hard strata or a depth equal to twice the dilfcrence in the elevation of the
ground surface on cither side of the structure ( see Fig, 6 ). In a few cases,
the borings may be taken deeper to investigate the nature of the underlying
strata. It is desirable to use lai'ge diameter bores in reclaimed areas and
where embedded boulder layers are encountered, depending on the size of
the project.

7.2.5 The intermediate borings of the first order may be further drilled
after the findings of the principal borings are known, to a depth at which
the known unifonn soil layer, identified by the principal borings, is encoun-
tered, here also the spacing of the borings may be 50 m.

7.2.6 The intermediate borings of the second order may be drilled only
when there is a considerable change in the upper layers. Normally, they
are also located at 50 m spacing but off the areas as shown in Fig. 5. The
spacing could be reduced if the subsoil conditions so require it. The boring
depth depends on the result of the preceding borings and should extend at
least to twice the design depth.

7.2.7 Depth of Exploration for Channels and Dredging -^ For this purpose the
bore holes should be extended to a known geological foiTuation below the
dredged depth or the minimum of five metres beyond the design dredged
depth whichever is less.

7.2.8 Bore hole data should be presented in the form of bore hole logs
along with important longitudinal and cross -sectional soil profiles and bore
holes location plan. A recommended pro forma for bore hole logs is given in
Appendix A.

7.3 Mean Ground Water Level in Tidai Areas — This should be
ascertained over a yearly cycle on the entire site under reference or may be
assumed to lie at al)OUt 0*30 m above the mean tides water level. With a
stronger ground water influx from the shore, the mean water level may lie
higher as in rainy season and in areas with poor drainage characteristics.

7.4 Tlic results of iicid tests and those obtained from laboratory investigations
should be compiled and properties of identified strata tabulated for use in
design work.

*Gode of practici! Ciiv site investigHtioii for foiindalioiis.

15

lSs46$l(PartI).1974

MAIN BORINGS
tN i OF WALL

v7>7>7y>7V7>^^

.^>

ir^ l-i

S2

'^*W^f^^//^/J^M F //

I

zx

12

M

< >--::= 63c-

' I '

H~ DifTerenco in elevation of ground surfaces.

FfG. 6 Layout of Borings for Water Front Structures
IN Docks and Harbours

16

lS:4651(PartI).1974

8. SEISMIC DATA

8.1 Past data regarding seismic activity in the particular site may be collected

for use in design ( see IS : 1893-1970* ).

9. LOCAL RESOURCES

9.1 This section deals with tonstruction resources only. Local resources
may be men, materials and machine,

9»2 Materials • — A comprehensive assessment of the avjulability of the local
construction materials and their costs should be made as regards to the
following:

a) Types of material like bricks, stones, timber, etc;

b) Existing and proposed quarries; and

c) Facilities for transport of materials by rail, road or other modes of
transport.

9*3 Manpower Resources — The availability of the following should, be
judged and prevailing rates of daily wages recorded:
a) Skilled labour, trade-wise;
* 'b) Unskilled labour; and

c) Availability of local construction agencies with their resources.

9.4 Plant and Equipment — Availability of earth-moving and other
machinery and workshop facilities with the local bodies like Public Works
Department, etc, should be assessed so that advantage could be taken of these
facilities in the initial stages of the project till the project machinery arrives
and workshop facilities are set up.

9.5 Water and Power — The -availability of water and power for the
proposed facility and construction purpose should be ascertained and
recorded.

9.6 Local Rates — For costing purposes, local schedule of rates of material,

labour, transportation, hiring of plant, etc, should also be collected.

10» OTHER INFORMATION

1.6.1 Before deciding the preliminary design of the proposed work,
information on the following aspects should also be collected:

a) Availability and ownership of land for acquisition in the entire area
of the port.

*Ck>iter}a fpr earthquake resistant design of structures ( stcond revision ).

17

iS^ 4651 (Part I)- 1974

b) Map indicating areas of inundation during highest high tide. ,

c) Pollution and environmental effects:

i) Measurement of existing pollution level, and

ii) Pollution limit standards laid down by local bodies and other
authorities.

d) Any existing/proposed master plan for the development of the area
including hinter-land development.

e) Other information useful in the general planning of the port area,
such as investigations of any river/stream which has outlet in the
harbour, investigations regarding the river requiring diversion, etc.

11. REPORTING OF SITE DATA

11.1 A summary of site data may be reported on a form as suggested and
given at Appendix B for easy assimilation.

18

APPENDIX A

{Clause 7.2.8)

PRO FORMA FOR BORE HOLE LOG

IS: 4651 (Part I) -1574

i) Client's name:
ii) Name of the job:
iii) Name of the agency doing investigation:

Ground surface level:
Type of boring:
Diameter of boring:
Inclination:

Location:
Boring No,:
Soil sampler used:
Date started:
Date completed:

Sl Descrip- Soil Symbol Depth Tbick-

NO. TION OV GlASSI- from NESS OF

Strata ficatiok Ground Stratum r —

Surface: 20

m m

Percentage of
Gore Recovery

\^

40 60 80

Depth Sampling Depth Standard Ground Re-

OF , ^ ^ and PeNETRA- WaTBI^ MAJtKS

> Coke Type Sample Thick- tion Test ObSer-

100 No. NESS OF No. of vation

m Sample B lo ws-N

(1) (2)

(3)

(4)

(5)

(6)

(7) (8) (9) (10) (11) (12) (13) (14) (15)

(16)

(17) (18)

Legends for different types of samples:
i) U — Undisturbed sample
ii) D — Disturbed ^ample

iii) C — Gore

iv) M^~ Water sample

v) P — Penetrometer test
vi) DL — Large disturbed sample

19

As in the Original Standard, this Page is Intentionally Left Blank

IS:4651(PartI).l974

APPENDIX B

{Clause 11.1 )

PRECISE DATA FORM FOR PREPARATION OF A DOCK AND
HARBOUR ENGINEERING PROJECT

Note — This form is designed to serve as a check list. Many items may be
inapplicable ibr a particular project.

B-1* TERMS OF REFERENCE

a) Administrative authority/client.

b) Purpose of the scheme/project.

c) Design ships required to be catered for with all relevant parameters.

d) Number of ships likely to use Dock/Harbour facility at one time.

e) Duration of use during calendar year, whether all weather or fair
weather only.

f ) Permanently/Estimated life of structures required.

g) Summary of requirements:

1) Proposed approach channel /Entrance channel bearings, widths
and dredged depths and turning circles;

2) Wharfage/Berthage in linear metres and special requirements, if
any;

3) Dock harbour facilities like cranes, capstans and services, such
as water ( fresh/salt ) , electricity ( ac/dc ) , compressed air, fuel
oil, bunkering and so on;

4) Shore facilities like workshops, administrative blocks, passenger
transit lounges, warehouses, transit sheds and open storage area,
etc; and ^

5) Any special requirements, such as anchorages, navigational aids,
pollution contrpl.

h) Time of completion allowed.

B.2. SITE DATA
B-2.1 Location

a) Designation of site;

b) Latitude and longitude (Survey of India, Map sheet No. or
Mercantile Marine Department Map with coordinates );

21

IS: 4651 (Part I)- 1974

c) Altitude; and

d) Hinter-Iand characteristics including neighbourir^ towns or villages,
and prominent local features.

B*2.2 Communications

a) Existing highways with particular reference to state and national
highways;

b) Railway gauge ( sidings and other facilities ) ;

c) Inland waterways ( quantum of barge and lighterage traffic); and

d) Air routes.

B-2.3 Survey-Topographical Maps and Hydrographic Charts
B-2.3.1 Topographical

a) Plan showing GTS bench marks, cardinal points with coordinates
for triangulalion ( scale 1 : 50000 );

b) Contour plan with contour interval 1 metre (scale not less than
1 : 5 000; 1 : 2 500 or 1 : 1 250 preferable );

c) Auxiliary plan showing relative heights of important landmarks; and

d) Relief maps.

B-2.3.2 Hydrographic

a) Sounding chart of coastal region ( scale 1 : 50 000 or 1 : 25 000 );

b) Sounding chart of shore region (scale not less than 1 :5000;
1 : 2 500 or 1 : 1 250 preferable) showing sounding at two metre
intervals; and

c) General plan showing location and description of shore fixes and
other defined areas, such as dumping places.

B-2.4 Meteorological Data
B-2.4.1 Winds

a) Wind roses — direction/frequency,

b) Combind direction and frequency wifch roses with velocity super-
imposed; and

c) Velocity data with frequency and intensity represented on Beaufort
scale.

22

IS:4651(PartI)-1974

B«2.4*2 Cyclones

a) Tracks of severe cyclones — (traces) .

.b) Characteristics of design cyclone of frequency:

1) Maximum wind velocities in km/h,

2) Radii of maximum winds in km,

3) Pressure drop at eye of cyclone in mm of mercury,

4) Speed of movement of eye of cyclone in km/h, and

5) Height of wave generated by the design cyclone at deep sea.

B-2.4,3 Rainfall

a) Annual total rainfall ( average ) 1 To be given in

b) Months of maximum rainfall i statement form

c) Maximum intensity (mm per hour ) [ for at least 3 past

d) Average number of wet days per year J ^
B-2.4.4 Relative Humidity

a) Maximum for every month,

b) Mean for every month, and

c) Minimum for every month.

B-2.4.5 Temperatures — Daily and seasonal variation.

B-2.4.6 Barometric Pressures

a) Mean for every month year-wise, and

b) Annual mean year- wise.

B-2.5 Oceanograpluc Data

B«2.5.1 General Tidal Data for the Place

a) Lowest low water recorded,

b) Mean lower low water spring,

c) Mean low water spring,

d) Mean low water aeaps,

e) Mean sea level,

f ) Mean high water neap,

g) Mean high water springs,

h) -Mean higher high water springs, and
j ) .Highest high water level recorded.

23

i: 4651 (Part I). 1974

B-2.5.2 Tide-table ( predicted levels ) for the area] place
B-2.5.3 Observed tidal record of preceding 2 years in the area
B-2*5*4 Tide Data for a Specific Site

a) Observed tidal records for a 3 month period for specific structures,

b) Bore tides for estuarine harbours — over a 1 2 month period, and

c) Any abnormal tidal phenomena.
B-2.5.5 Waves

a) Frequency of occurrence for design storm;

b) Fetch;

c) Maximum wave heights and direction: wind waves aud^well;

d) Significant wave height, period and length for each type;

e) Location of wave recorders and output;

f ) Wave roses of observed waves;

g) Local storm surge and harbour resonance data if available; and
h) Long-period wave data.

B-2«5.6 Local Currents

a) Charts showing tidal current direction and velocity at springs and
neaps for the general area;

b) Modification in current pattern due to floou discharges for riverine
ports;

c) Current metre observations at depths of O'l rf, 0*5 d and 0*9 cf from
surface for a particular location/site under reference; and

d) Radio active-tracer studies for circulation pattern over the area.
B-2,5.7 Suspended Loady Salinity and Temperature

a) Wet and dry season observations for silt charge at depths of 0* 1 d,
0* 5 </ and 0*9 t/ belovy,, water level for area in general;

b) Littoral drift — yearly cyclic observations;

c) Hourly observations of- percentage content of silt and salinity
( graphic ) for the sitd; and

d) Seasonal observation ( monthly ) for variation of silt and salinity
content ( ppm and sp gr observations respectively ) ( graph ) ( for
the site ) .

B-2.5.8 Sea-Bed Characteristics

a) Sea-bed composition, and

b) General characteristics of bed-slope.

24

IS: 4651 (Part I) -1974

B-2.6 Geological Data

a) Published information about site geology, geomorphology
( Reference of pamphkts/periodicals/publications ) .

b) Geophysical survey of site:

1) Location and category of base rocks;

2) Bed rock characteristics; and

3) Geological features like faults, folds, unconformities, dip,
strike, etc, observed at site.

c) Quarry sites:

1) Location of quarries,

2) Distances from site of work,

3) Type of rock and its crushing strength, and

4) Type of rock formations,

B-2.7 Subsurface Data

a) Plan showing location and distribution of main borings and inter-
mediate boring of first and second order,

b) Bore hole logs,

c) Longitudinal and cross-sectional profiles,

d) Table of properties of soil strata found at site,

e) Summary of test results for soil characteristics,

f ) Ground water level data over entire site with yearly variation, and

g) P.ecord of artesian head of water in pervious layers and pumping
out test results.

B-2.8 Seismic Data

a) Design horizontal acceleration coefficient, and

b) Design vertical acceleration coefficient.

B-2.9 Iiocation of Resources

B-2.9.1 Materials

a) Existing and proposed quarries with yields;
bi) Construction materials; and

c) Facilities for transportation of materials like steel, cement by I'ail,

road and by other means of iransportxlion.

rNDIAN STANDANDS INSTITUTION

Headquarters :

Manak Bhavan, 9 Bahadur Shah Zafar Marg, NEW DELHI f 10002
Telephones : 26 60 21. 27 01 31 Telegrams : Manaksanstha

( Common to^II offices )

Regional Offices : Telephone

•Western : Manakalaya, E9 MIOC, Morol, Andheri (East), 6 32 92 95
BOMBAY 400093

tEastern ' 1/14 CI. T. Scheme VH M. V.). P. Rood, 36 24 99

Maniktola, CALCUTTA 700054

Southern : C. I. T. Campus, MADRAS 600113 41 24 42

Northern • B69 Phase Vlt, Industrial Foca! Point, 8 73 28

S.AS. NAGAR 160051 (Punjab)

Branch Offices :

'Pushpak' Nurmohamed Shaikh Marg. Khanpur, f2 63 48

AHMADABAD 380001 [2 63 49

'F' Biock Unity BIdg. Narasimharaja Square, 22 48 05

BANGALORE 560002

Gangotri Complex, Bhndbhada Roaa. T.T. Nagar, 6 27 16

BHOPAL 46200^

22E Kalpana Area. BHUBANESHWAR 751014 5 36 2?

5-8-56C L. N. Gupta Marg, HYDERABAD 500001 22 10 83

R14 Yudhtster Marg, C Scheme, JAIPUR 302005 6 98 32

117/418 B Sarvodaya Nagar, KANPUR 208005 ^t 72 92

Patliputra Industrial Estate. PATNA 800013 6 23 05

Hantex BIdg { 2nd Floor ), RIy Station Road, 32 27

TRIVANDRUM 695001

Inspection Office (With Sale Point ) :

Institution of Engineers ( India ) Building, 1332 Shivaji Nager, 5 £4 35
PUNE 411005

•Sales Of^ic? in Bombay is at Novelty Chambers, Grant Road, 89 ^5 28

Bombay 400007

fSales Office in Calcutta is at 5 Chowringhee Approach, 27 m 00

f.O. Princep Street. Calcutta 700072

Printftd at Sesma Offset Prets, Delhi, india

AMENDMENT NO. 1 JANUARY 1976

TO

IS : 46M ( Part I )-1974 CODE OF PRACTICE FOR

PLANNING AND DESIGN OF PORTS AND

HARBOURS

PART I SITE INVESTIGATION

( First Revision )

Gorrigendnm

{Page 9, Fig. 3 ) — Substitute the figure on page 2 of this amendment
for the existing figure.

K3

0)

<D
CD
3 ■

to
O

<D
CO
W

a

<D

3

a.
5'

HIGHEST HIGH WATER (HHW).

MEAN HIGH VMATER SPRINGS (MHW$).

MEAN HtOH WATER (MHW).

MEAN HIGH WATER NEAPS (MHWN).

MEAN SEA LEVEL (MSL).

MEAN LOW WATER NEAPS (MLWN).

M^AN LOW WATER (MIW).

MEAN LOW WATER SPRINGS (MLWS).

CHART DATUM (CD)

LOWEST LOW WATER (LLW>.

z

a.

<
ui

Ul

o

z

z
<

lU

2

111

z S

s <

o

Z Z

? i I*'

B; 1 *^
*^ 5 ;^

2E a.

<

CO

q: 3
1« o i

2 I I

< ^

UJ

Fig. 3 Form for Presenting Tidal Information

AMENDMENT NO. 2 MARCH 1980
TO

IS:46bl(Part I)-1974 CODE OF PRACTICE ruK PLANNING
AND DESIGN OF PORTS AND HARBOURS

PART I SITE INVESTIGATION

(First Revision)

Alteration^

{Page 15^ clause 7.2.3j, line 2) - Substiiiute
'13:1892-1979*' for ' IS: 1892-1962* ' .

{Page 16^ foot-note with '*' mark) - Substitute
the following for the existing foot-note:

**Code of practice for sub-surface inveJstigation for
foundations {first revision) . *

{Page 17, clause .8. 1^ line 2) - Substitute
'IS: 1893-1975*' for ' IS: 1893-1970* ' .

{Page 17 j foot-note with '*' mark) - Substitute
the following for the existing foot-note:

'*Criteria for earthquake resisteuat design of
structures {third revision) . ^

(BDC 66)

Saema Ofitat Pmt, Oalht, India